Chap 2 Matter/Change
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| atom | The smallest particle of an element that retains its identity in a chemical reaction.
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| chemical change/reaction | A change in which one or more reactants change into one or more products; characterized by the breaking of bonds in reactants and the formation of bonds in products. New substances are formed.
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| chemical property | The ability of a substance to undergo a specific chemical change. Describes how a substance reacts.
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| compound | A substance that contains two or more elements combined in fixed proportions.
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| element | The simplest form of matter that has a unique set of properties; cannot be broken down into simpler substances by chemical means.
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| gas | A form of matter that takes the shape and volume of its container; has no definite shape or volume.
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| heterogeneous mixture | A mixture that is not uniform in composition; components are not evenly distributed throughout the mixture. The mixture looks different throughout.
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| homogeneous mixture | A mixture that is uniform in composition; components are evenly distributed and not easily distinguished. The mixture looks the same throughout.
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| liquid | A form of matter that flows, has a fixed volume and an indefinite shape.
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| mass | A measure of the amount of matter an object contains.
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| mixture | A physical blend of two or more substances that are not chemically combined.
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| molecule | A neutral group of atoms joined together by covalent bonds.
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| physical change | A change during which some properties of a material change, but the composition of the material does not change.
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| physical property | A quality or condition of a substance that can be observed or measured without changing the substance’s composition.
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| solid | A form of matter that has a definite shape and volume.
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| solution | A homogeneous mixture, consists of solutes dissolved in a solvent.
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| volume | A measure of the space occupied by a sample of matter.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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